<template>
  <!-- 导入表 -->
  <el-dialog title="导入表" v-model="visible" width="80%" top="5vh" append-to-body>
    <el-form :model="queryParams" ref="queryRef" :inline="true">
      <el-form-item label="表名称" prop="tableName">
        <el-input
          v-model="queryParams.tableName"
          placeholder="请输入表名称"
          clearable
          style="width: 180px"
          @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item label="数据库名称" prop="tableSchema">
        <el-select v-model="queryParams.tableSchema" placeholder="请选择" style="width: 240px">
          <el-option
              v-for="item in databaseName"
              :key="item"
              :label="item"
              :value="item"
          />
        </el-select>
      </el-form-item>
      <el-form-item label="表描述" prop="tableComment">
        <el-input
          v-model="queryParams.tableComment"
          placeholder="请输入表描述"
          clearable
          style="width: 180px"
          @keyup.enter="handleQuery"
        />
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="Search" @click="handleQuery">搜索</el-button>
        <el-button icon="Refresh" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>
    <el-row>
      <el-table @row-click="clickRow" ref="table" :data="dbTableList" @selection-change="handleSelectionChange" height="260px">
        <el-table-column type="selection" width="55"></el-table-column>
        <el-table-column prop="tableName" label="表名称" :show-overflow-tooltip="true"></el-table-column>
        <el-table-column prop="tableSchema" label="数据库名称" :show-overflow-tooltip="true"></el-table-column>
        <el-table-column prop="tableComment" label="表描述" :show-overflow-tooltip="true"></el-table-column>
        <el-table-column prop="createTime" label="创建时间"></el-table-column>
        <el-table-column prop="updateTime" label="更新时间"></el-table-column>
      </el-table>
      <pagination
        v-show="total>0"
        :total="total"
        v-model:page="queryParams.pageNum"
        v-model:limit="queryParams.pageSize"
        @pagination="getList"
      />
    </el-row>
    <template #footer>
      <div class="dialog-footer">
        <el-button type="primary" @click="handleImportTable">确 定</el-button>
        <el-button @click="visible = false">取 消</el-button>
      </div>
    </template>
  </el-dialog>
</template>

<script setup>
import { findAllDB, listDbTable, importTable } from "@/api/tool/gen";

const total = ref(0);
const visible = ref(false);
const databaseName = ref([" "]);
const tables = ref([]);
const dbtables = ref([]);
const dbTableList = ref([]);
const { proxy } = getCurrentInstance();

const queryParams = reactive({
  pageNum: 1,
  pageSize: 10,
  tableName: undefined,
  tableSchema: undefined,
  tableComment: undefined
});

const emit = defineEmits(["ok"]);

/** 查询参数列表 */
function show() {
  getList();
  getDbList();
  visible.value = true;
}

/** 单击选择行 */
function clickRow(row) {
  proxy.$refs.table.toggleRowSelection(row);
}

/** 多选框选中数据 */
function handleSelectionChange(selection) {
  tables.value = selection.map(item => item.tableName);
  dbtables.value = selection.map(item => item.tableSchema);
}

/** 查询表数据 */
function getList() {
  listDbTable(queryParams).then(res => {
    dbTableList.value = res.rows;
    total.value = res.total;
  });
}


/** 查询表数据 */
function getDbList() {
  findAllDB().then(res => {
      databaseName.value = res.rows;
  });
}


/** 搜索按钮操作 */
function handleQuery() {
  queryParams.pageNum = 1;
  getList();
}

/** 重置按钮操作 */
function resetQuery() {
  proxy.resetForm("queryRef");
  handleQuery();
}

/**
 * 导入按钮操作
 * 此函数处理导入表的操作，首先获取所选表的名称，并检查是否选择了表
 * 如果没有选择表，则显示错误消息；否则，调用导入表的API，并在成功时显示成功消息
 * 如果导入成功，关闭导入窗口，并触发一个自定义事件
 */
function handleImportTable() {
  // 将选中的表名转换为逗号分隔的字符串
  const tableNames = tables.value.join(",");
  // const tableSchema = dbtables.value.join(",");

  // 检查是否有表和数据库被选中
  // if (tableNames == "" || tableSchema == "") {
  if (tableNames == "") {
    // 如果没有表被选中，显示错误消息
    proxy.$modal.msgError("请选择要导入的表和数据库");
    return;
  }

  // 调用导入表的API
  importTable({ tables: tableNames,tableSchema:queryParams.tableSchema}).then(res => {
    // 显示导入结果的消息
    proxy.$modal.msgSuccess(res.msg);

    // 检查导入是否成功
    if (res.code === 200) {
      // 如果导入成功，关闭导入窗口，并触发一个自定义事件
      visible.value = false;
      emit("ok");
    }
  });
}


defineExpose({
  show,
});
</script>
